System Specifications

1998 Pontiac Firebird V8-5.7L VIN GSECTION System Specifications
Fastener Tightening Specifications
Catalytic Converter Hanger Bolt 41 Nm (30 ft. lbs.)
Catalytic Converter Heat Shield Bolt 2.0 Nm (18 inch lbs.)
Catalytic Converter Bolt 25 Nm (18 ft. lbs.)
Crossover Pipe Nut 35 Nm (26 ft. lbs.)
Exhaust Heat Shield Bolt 2.0 Nm (18 inch lbs.)
Exhaust Manifold Pipe Bolt 35 Nm (26 ft. lbs.)
Exhaust Muffler Clamp Bolt 68 Nm (50 ft. lbs.)
Exhaust Muffler Hanger Bolt 9.5 Nm (84 inch lbs.)
Exhaust Muffler Heat Shield Bolt 2.0 Nm (18 inch lbs.)
Exhaust Pipe Hanger Nut 20 Nm (15 ft. lbs.)
Exhaust Pipe Hanger Bracket Bolt 9.5 Nm (84 inch lbs.)
Exhaust Pipe Heat Shield Bolt 2.0 Nm (18 inch lbs.)
Heated Oxygen Sensor 42 Nm (31 ft. lbs.)
Exhaust Crossover Bolt/Stud 20 Nm (15 ft. lbs.)

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.